CA2033310A1 - Systeme et methode de compression de signaux de communication - Google Patents
Systeme et methode de compression de signaux de communicationInfo
- Publication number
- CA2033310A1 CA2033310A1 CA2033310A CA2033310A CA2033310A1 CA 2033310 A1 CA2033310 A1 CA 2033310A1 CA 2033310 A CA2033310 A CA 2033310A CA 2033310 A CA2033310 A CA 2033310A CA 2033310 A1 CA2033310 A1 CA 2033310A1
- Authority
- CA
- Canada
- Prior art keywords
- communication signal
- compression system
- signal compression
- signal
- carrier medium
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/41—Bandwidth or redundancy reduction
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/66—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Multimedia (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
- Facsimiles In General (AREA)
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/369,292 US4974099A (en) | 1989-06-21 | 1989-06-21 | Communication signal compression system and method |
EP90119336A EP0480083B9 (fr) | 1989-06-21 | 1990-10-09 | Procédé et système de compression d'un signal de communication |
DE69029658T DE69029658T3 (de) | 1989-06-21 | 1990-10-09 | Verfahren und Einrichtung zur Kompression eines Kommunikationssignals |
ES90119336T ES2095229T5 (es) | 1989-06-21 | 1990-10-09 | Sistema y metodo de compresion de señales de comunicaciones. |
US07/617,789 US5072308A (en) | 1989-06-21 | 1990-11-26 | Communication signal compression system and method |
CA002033310A CA2033310C (fr) | 1989-06-21 | 1990-11-27 | Systeme et methode de compression de signaux de communication |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/369,292 US4974099A (en) | 1989-06-21 | 1989-06-21 | Communication signal compression system and method |
EP90119336A EP0480083B9 (fr) | 1989-06-21 | 1990-10-09 | Procédé et système de compression d'un signal de communication |
CA002033310A CA2033310C (fr) | 1989-06-21 | 1990-11-27 | Systeme et methode de compression de signaux de communication |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2033310A1 true CA2033310A1 (fr) | 1992-05-28 |
CA2033310C CA2033310C (fr) | 1996-01-16 |
Family
ID=27168851
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002033310A Expired - Lifetime CA2033310C (fr) | 1989-06-21 | 1990-11-27 | Systeme et methode de compression de signaux de communication |
Country Status (5)
Country | Link |
---|---|
US (1) | US4974099A (fr) |
EP (1) | EP0480083B9 (fr) |
CA (1) | CA2033310C (fr) |
DE (1) | DE69029658T3 (fr) |
ES (1) | ES2095229T5 (fr) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4675863A (en) | 1985-03-20 | 1987-06-23 | International Mobile Machines Corp. | Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels |
US7106819B1 (en) | 1987-11-20 | 2006-09-12 | Interdigital Technology Corporation | Plural subscriber system utilizing synchronized timeslots on a single frequency |
US5930297A (en) * | 1989-11-20 | 1999-07-27 | Interdigital Technology Corporation | Base station emulator |
US5495508A (en) * | 1987-11-20 | 1996-02-27 | Interdigital Technology Corporation | Base station emulator |
US5072308A (en) * | 1989-06-21 | 1991-12-10 | International Mobile Machines Corporation | Communication signal compression system and method |
US5243438A (en) * | 1989-10-30 | 1993-09-07 | At&T Bell Laboratories | Facsimile compression for transmission |
KR930006476B1 (ko) * | 1990-09-29 | 1993-07-16 | 삼성전자 주식회사 | 영상처리 시스템의 데이타 변복조방법 |
FI92894C (fi) * | 1992-08-17 | 1995-01-10 | Nokia Telecommunications Oy | Järjestely datansiirron tehostamiseksi digitaalisessa solukkoradioverkossa |
SG47025A1 (en) * | 1993-03-26 | 1998-03-20 | Motorola Inc | Vector quantizer method and apparatus |
US5546383A (en) | 1993-09-30 | 1996-08-13 | Cooley; David M. | Modularly clustered radiotelephone system |
US5513212A (en) * | 1993-11-15 | 1996-04-30 | At&T Corp. | Conversion of a fax modulation to a data modulation |
MX9606368A (es) * | 1995-04-19 | 1997-03-29 | Motorola Inc | Metodo y aparato para codificar y decodificar a baja velocidad. |
US5508708A (en) * | 1995-05-08 | 1996-04-16 | Motorola, Inc. | Method and apparatus for location finding in a CDMA system |
US5900825A (en) * | 1996-08-01 | 1999-05-04 | Manitto Technologies, Inc. | System and method for communicating location and direction specific information to a vehicle |
US6111870A (en) * | 1996-11-07 | 2000-08-29 | Interdigital Technology Corporation | Method and apparatus for compressing and transmitting high speed data |
US6434125B1 (en) | 1997-10-24 | 2002-08-13 | Lucent Technologies Inc. | Automatic data service selection method and apparatus for digital wireless communication networks |
AU5840700A (en) * | 1999-07-16 | 2001-02-05 | Nokia Corporation | Tty/tdd interoperable solution in digital wireless system |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53138628A (en) * | 1977-05-10 | 1978-12-04 | Ricoh Co Ltd | Compressed data reproducing method using interpolation |
JPS53141525A (en) * | 1977-05-16 | 1978-12-09 | Ricoh Co Ltd | Highly-compressible facsimile equipment |
US4291329A (en) * | 1979-08-31 | 1981-09-22 | Westinghouse Electric Corp. | Thyristor with continuous recombination center shunt across planar emitter-base junction |
US4517561A (en) * | 1982-07-28 | 1985-05-14 | Motorola, Inc. | Selective call, paging and priority signalling system |
DE3233288A1 (de) * | 1982-09-08 | 1984-03-08 | Robert Bosch Gmbh, 7000 Stuttgart | System zur zeitlichen kompression und/oder expansion von elektrischen signalen |
US4675863A (en) * | 1985-03-20 | 1987-06-23 | International Mobile Machines Corp. | Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels |
US4783698A (en) * | 1987-04-13 | 1988-11-08 | Technology Inc., 64 | Interpolator for compressed video data |
-
1989
- 1989-06-21 US US07/369,292 patent/US4974099A/en not_active Expired - Lifetime
-
1990
- 1990-10-09 DE DE69029658T patent/DE69029658T3/de not_active Expired - Lifetime
- 1990-10-09 EP EP90119336A patent/EP0480083B9/fr not_active Expired - Lifetime
- 1990-10-09 ES ES90119336T patent/ES2095229T5/es not_active Expired - Lifetime
- 1990-11-27 CA CA002033310A patent/CA2033310C/fr not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0480083B1 (fr) | 1997-01-08 |
EP0480083B9 (fr) | 2006-05-10 |
US4974099A (en) | 1990-11-27 |
ES2095229T3 (es) | 1997-02-16 |
DE69029658T3 (de) | 2006-04-06 |
EP0480083A1 (fr) | 1992-04-15 |
CA2033310C (fr) | 1996-01-16 |
ES2095229T5 (es) | 2005-11-01 |
DE69029658T2 (de) | 1997-04-24 |
EP0480083B2 (fr) | 2005-04-20 |
DE69029658D1 (de) | 1997-02-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKEX | Expiry |